Window regulator



May 22, 1956 c. s. LAUTENBACH WINDOW REGULATOR 4 Sheets-Sheet 1 FiledJan. 2. 1952 Gttornegs May 22,

1956 c. s. LAUTENBAGH 2,746,747

WINDOW REGULATOR Zhwentor y 1956 c. s. LAUTENBACH 2,746,747

WINDOW REGULATOR Filed Jan. 2, 1952 4 Sheets-Sheet 3 w an,

3nventor y 956 c. s. LAUTENBACH WINDOW REGULATOR 4 Sheets-Sheet 4 FiledJan. 2, 1952 flail; 12/223231 United States Patent WINDOW REGULATORCharles S. Lautenbach, Berkley, Mich. assignor to General MotorsCorporation, Detroit, Mich., a corporation of Delaware I ApplicationJanuary 2, 1952, Serial No; 264,528

14 Claims. Cl. 268-104) This invention relates to window regulators, andin gen eral to window regulators of a type providing multi-directionalwindow movement particularly advantageous in opening and closing therear quarter window of automobiles.

The conventional rear quarter window of an automobile ofttimes ispivoted at its forward lower end on a fixed-pivot about which the windowis opened by window regulator means that causes the said rear quarterwindow to pivot downwardly about its fixed pivot. This construction hasbeen found to be disadvantageous for several reasons, among which is thefact that the roof line design is limited by the space required forclearance for the upper front corner of the rear quarter window as therear quarter window is pivoted open or closed about its fixed pivot. Toprovide the necessary clearance referred to above, it is generallynecessary to construct a pocket in the roof rail above the rear quarterwindow which is not only expensive but necessitates special provisionsfor Weatherstripping at the said pocket.

Furthermore, when a conventionally pivoted rear quarter window panel ispivoted to apartially open position to admit a small amount ofventilation to the rear seat space ofxthe automobile, an unsightly orhaphazard appearance results that detracts from the normal symmetry andsmooth flowing body design lines of the modern motor vehicle.

With the foregoing in view, it is the primary object of the invention toprovide a new and effective window regulator construction usable, amongother places, in a pivoted rear quarter window mounting, which windowregulator construction causes the window panel to move downwardly andupwardly at the initial opening and final closing thereof respectively.

Another object of the invention is to provide pivoted window regulatormeans which permits the window panel to be opened with a substantiallydirect downward movement to provide a limited uniform ventilator spacealong the top thereof prior to pivoting the said window panel to itsfull open position and to allow sufliicient clearance at the roof railfor pivoting the said window panel to its full open position.

Another object of the invention is to provide a multidirectionalmovement window regulator which moves a window panel first downwardlyand then pivots the same rearwardly to open, the said window regulatormoving said window panel slightly out of abutment with its forwardlyadjacent member during its initial downward opening movement and intoabutment with said forwardly adjacent member during its final upwardclosing movement.

A further object of the invention is to provide an improvedmulti-directional movement window regulator for rear. quarter automobilewindows which. is simple and economical to manufacture and install andwhich mayemploy any one of several well known .window regulatoractuating means. I

Other objects of the invention will become. apparent by.

2,746,747 e ers- 1 Me -2 9 6.

reference to the following detailed description taken in connection withthe accompanying drawings, in which:

Fig. l is a fragmentary elevational view of an automobile body withportions broken away showing a rear quarter window regulator embodyingthe invention with the rear quarter window panel in its closed position.

Fig. 2 is a fragmentary elevational view similar to Fig. 1 with the rearquarter window panel moved downwardly upon the initial opening thereofto a ventilation position leaving a neat uniform ventilation space alongthe top of the Window panel.

Fig. 3 is a fragmentary elevational view similar to Figs. 1 and 2 exceptthat the rear quarter window panel has been pivted downwardly from itsinitial ventilation position toward its full open position.

Fig, 4 is an enlarged detailed horizontal sectional view of theswingable link-pivot mechanism taken on the line 44 of Fig. 1.

Fig. 5 is an enlarged detailed sectional view of the intermediatearcuate guide bracket taken on the line S-5 of Fig. 1.

Fig. 6 is an enlarged detailed horizontal sectional view of thestabilizer shoe construction taken on the line 6-6 of Fig. 1.

Fig. 7 is an enlarged detailed vertical sectional view taken on the line7-7 of Fig. 1 showing the horizontal guide, cam pin and cam guideconstruction.

Fig. 8 is an. enlarged elevational View of the swingable link-pivotmechanism, the full lines showing the said mechanism in the positionassumed when the window panel is fully closed, while the dot and dashlines show the said mechanism in the position assumed when the windowpanel is fully opened.

Fig. 9 is a fragmentary elevational view similar to Fig. l of anautomobile body with portions broken away showing an alternativeembodiment of the invention with the rear quarter panel in its closedposition.

Fig. 10 is an enlarged sectional view taken on the line 10-19 of Fig. 9.

Referring now to the drawings wherein like numerals refer to like andcorresponding views, the particular embodiment of the inventiondisclosed for the purpose of illustration is shown in connection withthe rear quarter window panel 10 of a hardtop convertible styleautomobile body 11; however, it is obvious that multi-directionalmovement window regulators embodying the invention may be usedadvantageously in other window installations.

In the embodiment of the invention disclosed in Figs. l8 inclusive, thewindow regulator shown in the drawings comprises a sector type operatingelement 12 mounted by studs 13 on the inner body member 14 andpreferably includes a window operating crank and clutch, not shown, adriving pinion 15 which meshes with a toothed sector 16 onto which acantilever window lifting arm 17 is fixed by such means as rivets 13.The cantilever window lifting arm 17 is provided with a suitable guidepin or roller 19 at the outer end thereof which travels in a horizontalguideway 20 riveted by rivets 209 (Fig. 7) to therear lower portion ofthe trim strip 55 of the rear quarter window. panel 14). The front lowerportion of the quarter window panel 19 is-provided with a bracket 21 andmounting arm 22 which is pivotally connected by a window panel pivot 23to the upwardly and downwardly swingable link 24 pivoted by a swingablelink pivot 25 on a hinge mechanism mounting plate 26 secured to theinner body member 14' at reinforcing plates by such means as the studs27 and 270, the latter serving to align the said mounting plate 26. Anouter face plate 28 secured by studs 29 to an outstanding lug 260 of thehinge mechanism mounting mounting arm 22 in proper operating alignmentin respect to each other and the hinge mechanism mounting plate 26.

A stop 30 is provided on the hinge mechanism mounting plate 26 to limitthe downward swinging of the upwardly and downwardly swingable link 24to which the forward lower end of the quarter window panel 1t pivoted bythe pivot 23. The location of this stop 30 establishes the limit of thedowiward movement of the quarter window panel upon the initial openingthereof, the upward movement of the said quarter window panel 10 uponthe final closing thereof being limited by the abutment of the saidquarter window panel 10 against its glass channels or adjacent windowelement 3.1, as the case may be. A tension spring 32 anchored at one endto a pin 33 on the inner body member 14 and at the other end to theswingable link 24 constantly draws the swingable link toward the stopwhen the window panel 16 closed and during its initial downward andfinal upward novement by the operating element 1.2, the said spring 32holding said swingable link 24 against the stop 30 during the pivotalmovement of the window panel 1%) by the operating element 12. Thusly,the tension spring 32 serves to remove play from the window regulatormechanism that otherwise would be present, thereby assuring smoothoperation thereof.

As best shown in Figures 1, 2, 3, 6 and 7, a stabilizer shoe generallydesignated by the numeral 34 is riveted by rivets 35 to the horizontalguideway 20, extends rearwardly therefrom and rides an arcuate guide 36secured at its upper and lower ends and intermediate said ends to a bodymember by brackets 37, 38 and 39 respectively, the said guide meansserving to maintain the window panel 10 in proper alignment at all timesduring the opening and closing of the same, when fully or partiallyopen, and when closed. A stop 40 at the lower end of the arcuate guide36 prevents movement of the window panel 10 beyond its proper fully openposition. The said stabilizer shoe 34 consists of a V-shaped element towhich inwardly facing preferably felt contact pads 41 are riveted bycountersunk rivets 42, the said contact pads 41 being located tofrictionally engage and ride on the arcuate guide 36. The end guidebrackets 37 and 38 for the arcuate guide 36 are shown secured to theinner body member 14. The intermediate guide bracket 39 for the arcuateguide 36 may be of any necessary construction, and is welded to the saidarcuate guide 36 at one end and has the other end thereof adjustablyconnected to an outer body member 43 by such means as a bracket 430, astud 44, suitable washers 45 and 46 and nuts 47 and 48. If desired, theintermediate guide bracket 39 may be secured to the inner body member14.

At the lower rear end of the window panel and con nected thereto throughthe medium of a cam pin bracket 49 riveted to the horizontal guidemember 20 by the same rivets that secure the stabilizer shoe to the saidguide member 20 is a cam pin 50 which engages cam guide element 51secured by rivets 53 to the inner body member 14 near the rear end ofthe window panel 10 when the said window panel 10 is closed and is insubstantial horizontal alignment with the window hinge mechanismhereinbefore described, the said cam pin guide element 51 having adownwardly and rearwardly disposed cam guide slot 52 therein open at thelower edge thereof as best shown in Fig. 1. This cam construction shownin Figs. 1, 2 and 7 is employed to guide the window panel 10 downwardlyand slightly rearwardly during the initial lowering thereof from itsfully closed position shown in Fig. 1 to its ventilation position shownin Fig. 2. During this initial lowering of the window panel 10, theswingable link 24 pivots about the swingable link pivot 25 before thewindow panel 10 begins to pivot about the window panel pivot 23 disposedat the forward end of the swingable link 24. During the pivoting of thewindow panel 10, the cam pin 50 is out of engagement with the cam guideelement 51.

When the window panel 10 is pivoted from a partial or full open positionto its ventilation position shown in Fig. 2, and arrives at thatposition, the cam pin 50 becomes engaged with the cam guide 51, and,upon further closing of the window by the window regulator operatingelement 12, the window panel 19 is moved upwardly and forwardly to itsfully closed position in weather sealed contact with its adjacent windowelement 31 as shown in Fig. 1. In its closed position the upper and rearportions of the window panel 10 are in engagement with a glass channel,not shown, carried by the automobile body. In the embodiment of theinvention shown in the drawings, a weather sealing strip 54 of suitableform is carried by the forward edge of the window panel 10 and thewindow panel 16 is provided with a peripheral trim strip 55 of usualconstruction. Obviously, the weather sealing strip 54 may be omitted,and a suitable glass channel or sealing strip may be carried by theforwardly adjacent element 31 against which the forward edge of thewindow panel 10 abuts.

In the operation of the multi-directional window regulater, the openingand closing force is applied to the lower rear portion of the windowelement 10 through the sector type operating element 12 and the windowlifting arm 17 which engages the window element 10 through the guide pinor roller 19 and the horizontal guideway 20. When opening the rearquarter window, the window element 10 first moves downwardly andslightly rearwardly responsive to force applied thereto by the sectortype operating element 12 from its fully closed position shown in Fig. lto its ventilation position shown in Fig. 2 by the downward swinging ofthe swingable link 24 and the guidance of the cam guide element 51 intowhich the cam pin 50 is slidingly engaged. Upon the window element 10arriving at its full ventilation position, the swingable link is incontact with its stop 30, and, any additional actuation of the operatingelement 12 to further open the rear quarter window causes the windowelement 10 to pivot about its pivot 23, the cam pin 50 leaving the camguide element 51. In closing the rear quarter window, the operatingelement 12 pivots the rear quarter window panel 10 about its pivot 23from an open position as shown in Fig. 3 to its full ventilationposition shown in Fig. 2, and, additional actuation of the operatingelement 12 raises the window panel 10 upwardly and forwardly underguidance of the cam pin 50 in the cam guide element 51. The upward forceof the window lifting arm 17 applied by the operating element 12 to thewindow panel 10 at the horizontal guideway 20 when the cam pin 50 isengaged in the cam guide element 51 lifts the window panel 10 upwardlyand forwardly which is permitted by the upward swinging of the forwardend of the swingable link 24 to which the window panel is pivoted by thewindow panel pivot 23.

Referring now to the alternative embodiment of the invention disclosedin Figs. 9 and 10, the construction is like and similar to theembodiment of the invention shown in Figs. l-8 inclusive except that anX-type window lifting element 60 is employed rather than the windowlifting arm 17, necessitating a longer horizontal guideway 61. A camguide element 62 having an inverted L-shaped cam slot 63 therein and acam 64 replace the cam guide element 51, the cam guide slot 52 and thecam pin 50. Also, a stabilizer fin 65 extending rearwardly from theupper rear corner of the trim strip 55 of the rear quarter window panel10 replaces the stabilizer shoe 34 extending rearwardly from thehorizontal guideway 20. The arcuate guide 36 is changed to an arcuatechannel shaped guide 66, the latter being re-located to slidably receivethe stabilizer fins 65 and retain the window panel 10 in its properalignment during the raising, lowering and pivoting thereof. A suitablestop 67 is preferably provided at the lower end of the arcuate channelshaped guide 66 engageable by the stabilizer fin 65 to limit thedownward pivoting of the window panel 10.

In the alternate embodiment of the invention, the two arms 600 and 601of the X-type window lifting element 60 are preferably hinged togetherby a double-shouldered rivet 68 which also rigidly splices together thetwo halves 6010 of the arm 601 by virtue of the flat sides 69 of thesaid pivot 68. The cross arm 600 is riveted at its lower end to thetoothed sector 16 of the window regulator by suitable rivets l8, and theupper end of the cross arm 600 and 601 are each provided with a guidepin or roller 19 which rides in the horizontal guideway 61. On the lowerend of the cross arm 601 is the cam 64 which, when the rear quarterwindow panel is closed or up as shown in Fig. 9, is positioned in thehorizontal portion of the inverted L-shaped cam guide slot 63 betweenhorizontal cam guide members 630. When the cam 64 is so positioned, thewindow panel 10 is positively prevented from unauthorized manualmovement. In other words, by the use of the cam guide arrangementdisclosed in Fig. 9, the window panel 10 cannot be moved initiallydownward from its closed or nearly closed position except bymanipulation of the window regulator handle, not shown, which moves thetoothed section 16 through the pinion 15.

When the window panel 10 is lowered by the window regulator, the cam 64travels horizontally between the horizontal cam guide members 630 untilit arrives at the vertical portion of the inverted L-shaped cam guideslot 63 during which time the window panel 10 lowers vertically. Afterthe said cam 64 arrives opposite the vertical portion of the invertedL-shaped cam guide slot 63, the Window panel 10 begins to pivot aroundthe window panel pivot 23 responsive to additional movement of thewindow regulator until it is fully open whereupon the stabilizer fin 65arrives at the stop 67. Obviously, the mechanism operates in an oppositemanner during the closing of the window panel 10 by the window regulatorat which time the window panel 10 first pivots to its horizontalposition short of closing and then moves upwardly to its fully closedposition.

In both embodiments of the invention it may be desirable to provide thewindow mounting arm 22 with a cam pin 70 which engages a cam surface 280formed on the edge of the face plate 20 secured to the hinge mech anismmounting plate 26 when the window panel 10 is opened, see Figs. 4 and 8.This feature prevents unauthorized movement of the several elements ofthe window regulator mechanism when the window panel 10 is opened.

Thus, with the improvements in multi-directional window regulatorsherein disclosed, a moderate amount of ventilation may be obtained witha pivoted window by lowering the window a pre-determined distance beforeany pivotal action takes place. Also, the downward movement of thewindow may be directed at a relatively small angle away from the elementagainst which the forward edge of the window panel abuts, therebyrelieving all of the friction between the window panel and the abuttingelement except that which occurs at the beginning of the initialdownward opening movement and at the end of upward closing movement ofthe window panel. I

Although but two embodiments of-the invention have been disclosed anddescribed herein, it is obvious that many changes may be'made in thesize, shape, arrangement and detail of the various elements of theinvention to accommodate it to use with any type of manual or poweroperating elements and to use in connection with many types of windowsother than automobile rear quarter windows, all within the scope of theinvention as defined by the appended claims.

1 I claim: i

1;. A- multi-directional"window regulator for vehicle bodies, having awindow opening and a window panel closing saidopening, a verticallyswingabl'e link pivoted to a body member with the free end thereofdisposed limiting the vertical movement of said link, means spaced fromsaid swingable link engaging and supporting said' window panel includingmechanism for moving and pivoting said window panel to open and closethe same, and

guide means having a portion on the body and a portion on the windowpanel for limiting the initial opening and final closing movements ofsaid window panel to downwardly and upwardly movements respectively.

2. A multi-directional window regulator for vehicle bodies having awindow opening and a window panel closing said opening, a verticallyswingable link pivoted to a body member with the free end thereofdisposed under one corner of said window panel, means pivoting saidwindow panel to the free end of said link, a stop limiting the verticalmovement of said link, spring means constantly urging said swingablelink toward said stop,- means spaced from said swingable link supportingsaid window panel including mechanism for moving and pivot-.

ing said window panel to open and close the same, and guide means havinga portion on the body and a portion on the window panel for limiting theinitial opening and final closing movements of said window panel todownwardly and upwardly movements respectively within limits permittedby the movement of said swingable link.

3. A multi-directional window regulator for vehicle bodies having awindow opening and a window panel closing said opening, a verticallyswingable link pivoted to a body member, means pivotably connecting onecorner of said window panel to said swingable link, stop means limitingthe vertical movement of said swingable link, a window lifting armslidably connected to said window panel at a point spaced from saidswingable link, means for actuating said lifting arm to open and closesaid window, and guide means engageable by an opposite corner of saidwindow panel during the initial opening and final closing movementsthereof limiting the movement of said window panel downwardly andupwardly on said swingable link respectively prior and subsequent topivotal movement of said window panel.

4. A multi-directional window regulator for vehicle bodies having awindow opening and a window pane] closing said opening, a verticallyswingable link pivoted to a body member, means pivotally connecting onecorner of said window panel to said swingable link, stop means limitingthe vertical movement of said swingable link, means constantly urgingsaid swingable link toward said stop, a window lifting arm slidablyconnected to said window panel at a point spaced from said swingablelink, means for actuating said lifting arm to open and close saidwindow, and guide means adjacent-said arm engageable by an oppositecorner of said window panel during the initial opening and final closingthereof limiting the movement of said window panel upwardly anddownwardly on said swingable link.

5. A multi-directional window regulator for vehicle bodies having awindow opening and a window panel closing said opening, a verticallyswingable link pivoted to a body member with the free end thereofdisposed under one corner of said window panel, means pivoting saidwindow panel to the free end of said link, a stop limiting the verticalmovement of said link, spring means constantly urging said swingablelink toward said stop;

means spaced from said swingable link supporting said window panelincluding mechanism for opening and closing the same, an arcuate guideon said body and guide engaging shoes carried by said window panelriding said arcuate guide whereby to prevent lateral movement of thenon-pivoted corner of said window panel, and guide means positionedadjacent the lower edge of said window, said guide means limiting theinitial opening and final closing of said window panel by said openingand closing mechanism to downwardly and upwardly movements re spectivelywithin limits permitted by the movement of the said swingable link priorand subsequent to pivotal movement of said window panel about its pivot.

6. A multi-directional window regulator for vehicle bodies having awindow opening and a window panel closing said opening, a verticallyswingable link pivoted to a body member, means pivotally connecting onecornor of said window panel to said sWingable link, stop means limitingthe vertical movement of said swingable link, means constantly urgingsaid swingable link toward said stop, a window panel lifting armsupporting said window panel slidably connected thereto at a pointspaced from said swin gable link, means for actuating said lifting armto open and close said window, an arcuate guide on said body and guideengaging shoes carried by said window pane] riding said arcuate guidewhereby to prevent lateral movement of the non-pivoted corner of saidwindow panel, and guide means adiacent said arm engageable by anopposite corner of said window panel during the initial opening andfinal closing thereof limiting the movement of said window paneldownwardly and upwardly on said swingable link prior and subsequent topivotal movement of said window panel about its pivot.

7. A multi-directional window regulator for vehicle bodies having awindow opening and a window panel closing said opening, a verticallyswingable link pivoted to a body member with the free end thereofdisposed under one corner of said window panel, means pivoting saidwindow panel to the free end of said link, a stop limiting the verticalmovement of said link, mechanism mounted on said body member for movingand pivoting said window panel to open and close the same including asingle cantilever arm engaging and supporting said window panel, andguide means adjacent said panel and arm and engageable by said panel forlimiting the initial opening and final closing movements of said windowpanel to downwardly and upwardly movements respectively.

8. A multi-directional window regulator for vehicle bodies having awindow opening and a window panel closing said opening, a verticallyswingable link pivoted to a body member with the free end thereofdisposed under one corner of said window pane], means pivoting saidwindow panel to the free end of said link, a stop limiting the verticalmovement of said link, mechanism mounted on said body member for movingand pivoting said .vindow panel to open and close the same including anX-type element engaging and supporting said window panel, and guidemeans on said body member also engaged by said X-type element limitingthe initial opening and final closing movements of said window panel todownwardly and upwardly movements respectively.

9. A multi-directional window regulator for vehicle bodies having awindow opening and a window panel closing said opening, a verticallyswingable link pivoted to a body member, means pivotably connecting onecorner of said window panel to said swingable link, stop means limitingthe vertical movement of said swingable link. an X-type window liftingelement slidably connected to said window panel at points spaced fromsaid swingable link, means for actuating said X-type window liftingelement to open and close said window, and guide means on said bodymember engageablc by said X-type window lifting element during theinitial opening and final closing movements thereof limiting themovement of said window panel downwardly and upwardly on said swingablelink respectively prior and subsequent to pivotal movement of saidwindow panel.

10. A multi-dircctional window regulator for vehicle bodies having awindow opening and a window panel closing said opening, a verticallyswingable link pivoted to a body member, means pivotally connecting onecorner of said window panel to said swingable link, stop means limitingthe vertical movement of said swingable link, means constantly urgingsaid swingable link toward said stop, an X-type window lifting elementslidably connected to said window panel at points spaced from saidswingable link, means for actuating said X-type window lifting elementto open and close said window, and horizontal guide means engageable bysaid X-type window lifting element during the initial opening and finalclosing thereof limiting the movement of said window panel upwardly anddownwardly on said swingable link, the said horizontal guide meanspreventing movement of said window panel except as authorized by saidactuating mechanism when said X-type window lifting element is engagedthereby.

11. A multi-directional window regulator for vehicle bodies having awindow opening and a window panel closing said opening, a verticallyswingable link pivoted to a body member, means pivotally connecting onecorner of said window panel to said swingable link, stop means limitingthe vertical movement of said swingable link, means constantly urgingsaid swingable link toward said stop, a window panel X-type lifting armsupporting said window panel slidably connected thereto at points spacedfrom said swingable link, means fixed to said body member for actuatingsaid X-type lifting arm to open and close said window, an arcuate guideon said body member and means carried by said window panel cooperatingwith said arcuate guide whereby to prevent lateral movement of thenon-pivoted corner of said window panel, and horizontal guide means onsaid body member engageable by said X-type lifting arm during theinitial opening and final closing of said window panel limiting themovement of said window panel downwardly and upwardly on said swiugablelink prior and subsequent to pivotal movement of said window panel aboutits pivot, the said horizontal guide means preventing movement of saidwindow panel except by said actuating means when engaged by said X-typelifting arm.

12. A multi-directional window regulator for vehicle bodies having awindow opening and a window panel closing said opening, a verticallyswingable link pivoted to a body member with the free end thereofdisposed under one corner of said window panel, means pivoting saidwindow panel to the free end of said link, a stop limiting the verticalmovement of said link, mechanism mounted on said body member for movingand pivoting said window panel to open and close the same including anX-type element engaging and supporting said window panel, an invertedL-shaped guide means on said body member and cam means on said X-typeelement engaging said guide means limiting the initial opening and finalclosing movements of said window panel to downwardly and upwardlymovements respectively.

13. A window regulator for opening and closing a window panel of vehiclebodies, a pivot on which said window panel is pivoted, means engagingand supporting said pivot on a body member permitting limited generallyrectilinear bodily movement of said pivot and said window panel, meanssupporting said window panel spaced from said pivot supporting means, anoperating element mounted on said body member cooperating with saidwindow panel supporting means for moving said panel in a generallyrectilinear path and for pivoting said window panel about its pivot inthe plane of said rectilinear movement to open and close the same, andguide means having a portion mounted on the body and a portion on thewindow panel for guiding the generally rectilinear initial opening andfinal closing movements of said window panel downwardly prior to andupwardly subsequent to pivotal movement of said window panel during theopening and closing thereof.

14. A window regulator for opening and closing a window panel of vehiclebodies disposed in abutment against an adjacent abutting element whenclosed, a pivot on which said window panel is pivoted, means supportingsaid pivot on a body member movable in respect thereto permittinglimited generally rectilinear bodily movement of said pivot and saidwindow panel, means engaging and supporting said window panel spacedfrom said pivot supporting means, an operating element cooperating withsaid window panel supporting means for moving said panel in a generallyrectilinear path and for pivoting said window open and closed about itspivot in the plane of said rectilinear movement, and guide means havinga portion mounted on the body and a portion on the window panel forguiding the generally rectilinear initial opening and final closingmovements of said window panel downwardly prior to and upwardlysubsequent to the pivotal movement thereof, said means supporting saidpivot and said guide means directing said initial opening movement ofsaid window panel away from the adjacent abutting element and the finalclosing movement thereof against said abutting element.

References Cited in the file of this patent UNITED STATES PATENTS2,276,512 Parsons May 17, 1942 2,292,964 Nicholson Aug. 11, 19422,409,068 Roethel Oct. 8, 1946 2,559,120 Greenmun July 3, 1951 FOREIGNPATENTS 442,942 Great Britain Feb. 14, 1936

